Science
Energy
Conceptual
9–10 yrs
What happens when things collide
物体碰撞时会发生什么
Description
Ask questions and predict outcomes about the changes in energy that occur when objects collide
Mastery Evidence
- Predict the outcome of a collision based on the speeds and sizes of the objects
- Explain that energy transfers from one object to another during a collision
- Describe observable changes: one object speeds up, the other slows down, sound is produced
Assessment Prompt
If your child rolls two balls towards each other, can they predict what will happen when they hit and explain that energy transfers between them?
Prerequisites 1
Speed and energy
预测碰撞中的能量变化之前，必须先理解速度与能量的关系
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No follow-up topics
